JPH09139004A - Optical disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disk device capable of taking out optical disk at a loading position with a simple operation and preventing damage and phase shift from occurring even when an overload or an impact is applied. SOLUTION: A main tray is pulled in by rotation of a main gear(MG) 17 through a gear 15, and a projection 81 is made to abut on the projection part 82a of the MG, and the main tray is locked. Further, a circular groove 100a and a tapered groove 100c with radies different from each other are formed on the rear of the MG 17. Then, a made lock lever(ML) 101 is driven to rotate according to the rotation of the MG 17, and the rotation of the gear 38 is engaged/released. At this time, the gear 38 is locked to a prescribed phase by the engagement between the groove 100a and the pin 101b of the ML 101. Further, even in the state that the engagement between the MG 17 and the gear 38 comes off, the pawl part 101a of the ML 101 presses the tapered part of the recessed part 38a of the gear 38 by the rotation of the MG 17, and rotates the gear 38 to a prescribed position where backlash is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc device for reproducing or recording a compact disc.

[0002]

2. Description of the Related Art An optical disk device for selectively reproducing one of a plurality of set compact disks is
It is described in JP-A-6-259865. In this optical disc device, the compact disc loaded on the tray at the eject position is pulled to the playback position inside the device to play the compact disc loaded on the tray, or it passes through the playback position and reaches the stock position further back. The compact discs are stacked on a stocker provided in the stocker, or one of the compact discs stocked in the stocker is pulled out to a reproduction position for reproduction. In this optical disc device,
The retracting drive of the tray and the lifting drive of the stocker are
It is driven by separate motors and is always supported by a moving member for raising and lowering the stocker.

In Japanese Laid-Open Patent Publication No. 3-216857, a main tray having a plurality of sub-trays set therein is pulled from the outside of the main body of an optical disk device to a standby position inside, and a plurality of main trays are placed on the main tray at the standby position. An optical disk device is disclosed in which any one of the sub-trays is pulled out to a loading position and the optical disc set in the sub-tray pulled out to the loading position is played back.

In Japanese Examined Patent Publication No. 6-14423, a magnetic disk device for moving a disk-shaped recording medium to a loading position where it is loaded into a rotary drive unit inside the apparatus body, and the disk-shaped recording medium at the loading position can be manually taken out. An ejector is disclosed that does so.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The optical disk device of Japanese Patent No. 9865 uses a plurality of motors. It is an object of the present invention to provide an optical disc device that can be driven by a single motor. In order to construct an optical disk device with a single motor, a mechanism is often constructed with a plurality of gears. In this case, phase shift may occur when switching the drive due to backlash or deflection of the gears. It is an object of the present invention to provide an optical disk device that does not cause phase shift even when overloaded.

Further, in the optical disk device disclosed in Japanese Patent Laid-Open No. 6-259865, since the stocker is always supported by the moving member, a load is applied to the moving member when a shock is applied during transfer, and the relationship with the lifting pin is increased. There is a risk that it may come off and the moving member may be damaged. It is an object of the present invention to provide an optical disc device which is not damaged even if an impact is applied during transportation.

In the optical disk device disclosed in Japanese Patent Laid-Open No. 3-216857, the optical disk at the loading position cannot be taken out when a power failure occurs. Therefore, Japanese Patent Publication No. 6-14423 discloses that the optical disk at the loading position can be manually taken out. It is conceivable to combine the technologies mentioned above. However, the output shaft of the power source motor that drives the optical disc in the standby position to the loading position is manually rotated to eject the optical disc, and the output shaft of the power source motor that drives the main tray to the standby position is manually operated. When moving the main tray by rotating with, especially when the rotation of the motor is changed to the orthogonal plane using the worm gear, a large operating force is required for manual operation, and Has a bad problem.

It is an object of the present invention to provide an emergency ejection device for an optical disc device which can take out the optical disc at the loading position with a manual operation force smaller than the conventional one.

[0009]

According to a first aspect of the present invention, there is provided an optical disc device, wherein a main tray having a plurality of sub-tray layers stacked therein is drawn from the outside of the device body to an internal standby position.
The sub-tray placed on the main tray at the standby position is pulled out to the loading position, and in conjunction with the completion of pulling out the sub-tray to the loading position, the optical disc set in the sub-tray is rotated and driven while being clamped by the clamp device to record. Alternatively, in an optical disk device used for reproduction, a main tray pull-in drive system for pulling a main tray in which a plurality of sub-trays are stacked from the outside of the main body to an internal standby position, and a storage position stored in the main tray at the standby position. From the sub-tray to the loading position where the sub-tray is completed, the sub-tray pull-out means, the drive switching means for switching and transmitting the rotation of the single motor of the power source to the main-tray pull-in drive system and the sub-tray pull-out means, and the drive switching. Sub-tray drawer from means With the sub-tray pull-out drive system configured by a gear transmission system including a drive gear that transmits the drive to the stage and engages / disengages with the drive switching means, and the drive switching means and the drive gear are disengaged, the drive switching means Drawer locking means driven to lock the drive gear is provided.

According to a second aspect of the present invention, in the optical disc apparatus according to the first aspect, at least one concave portion is provided on an outer peripheral portion of the drive gear, and a claw portion that engages with the concave portion of the drive gear is used as a drawer locking means. The pullout locking means is driven in a state where the drive switching means and the drive gear are disengaged, and the drive gear is rotationally driven to reduce the backlash of the subtray pullout drive system by the engagement of the claw portion and the recess. .

According to a third aspect of the present invention, in the optical disc apparatus according to the second aspect, a first straight line portion toward the center of rotation of the drive gear is formed on the inner peripheral portion of the concave portion of the drive gear, and the concave portion of the drive gear is formed. A second straight line portion toward the center of rotation of the drive gear, and a taper portion connecting the first straight line portion and the second straight line portion is formed on the outer peripheral portion of the drive gear. In this state, the claw portion having substantially the same shape as the first straight portion is formed.

According to another aspect of the optical disk device of the present invention, a main tray having a plurality of sub-tray layers stacked therein is pulled from the outside of the device body to a standby position inside, and the sub-tray mounted on the main tray at the standby position is loaded. An optical disk device that pulls out to a position and interlocks with the completion of drawing the sub-tray to the loading position, and rotates and drives the optical disk set in the sub-tray while holding it with a clamp device for recording or reproduction. The main tray pull-in drive system that pulls the stacked main trays from the outside of the main unit to the internal standby position, and pulls out the sub tray from the storage position stored in the main tray at the standby position to the loading position where the sub tray is completely pulled out. Sub tray extraction drive system and single power source The rotation of the motor is switched to and transmitted to the main tray pull-in drive system and the sub-tray pull-out means to sequentially drive the drive switching means having a plurality of engaging portions and the plurality of engaging portions of the drive switching means from outside the device, And an auxiliary drive member for driving the drive switching means.

According to another aspect of the optical disk device of the present invention, the main tray in which a plurality of sub-trays are stacked is pulled from the outside of the main body of the device to an internal standby position, and the sub-tray mounted on the main tray at the standby position is loaded. An optical disc device that pulls out to a position and interlocks with the completion of pulling out the sub-tray to the loading position, and rotates and drives the optical disc set in the sub-tray while holding it with a clamp device for recording or reproduction. Of the stacked sub-trays, the lifting platform that can move the lifting platform to the height corresponding to the selected sub-tray among the plurality of sub-trays, and the lifting drive mechanism that is movably held. The main board that holds the height of the elevator is installed at the position corresponding to the height of the lower sub-tray. Than it is.

According to a sixth aspect of the present invention, in the optical disc apparatus according to the fifth aspect, the optical disc device is moved up and down at a height corresponding to the height of the lowermost sub-tray among the stacked sub-trays. The table is held by the main board. According to this configuration, when the main tray retracting operation is performed,
By locking the drive gear with the drawer locking means, the sub-tray drawing drive system can be locked. Even if the transmission between the drive switching means and the drive gear is disconnected immediately before the completion of the returning operation of the sub tray to the main tray, the taper of the drive gear is tapered by the claw portion of the drawer locking means in order to reduce the backlash of the sub tray drawer drive system. The sub tray can be surely returned to the main tray by driving the section to rotate the drive gear.

Further, by driving the plurality of engaging portions of the drive switching means sequentially from outside the apparatus by the auxiliary drive member to drive the drive switching means, the sub-tray pulled out to the loading position together with the main tray. It can be taken out of the device. Further, during the transfer, the elevating table can be held by the main substrate at the height corresponding to the height on the lowermost sub-tray.

[0016]

FIG. 1 is a block diagram showing an embodiment of the present invention.
~ It demonstrates based on FIG. The main tray 1 of the optical disc apparatus of the present invention has an external position in which it is pushed out from the front opening 3 of the apparatus body 2 as shown in FIG. 1A, and an apparatus as shown in FIG. 1B. The main body 2 is driven to a standby position that is pulled inside. A door 4 for closing the front opening 3 is urged in a closing direction by a spring (not shown). On the main tray 1, as shown in FIG.
Sub trays 6 _{1 to} 6 with disks 5 set in each
₅ are stacked directly, and when recording or reproducing,
(C), the main tray 1 at the standby position to any one sub-tray (here, the uppermost sub-tray 6
₅ the drawer to the loading position, and is configured to record or reproduce clamps the disk 5 is set on the sub-tray 6 ₅ drawn to the loading position in the rotary drive device [not shown].

As shown in FIG. 3, support cut portions 7 are formed on both side surfaces of each of the sub trays 6 _{1 to} 6 ₅ from the front end to the rear end, and both side surfaces of the directly stacked sub trays 6 _{1 to} 6 ₅ are formed. recess 8 as shown in FIG. 19 between adjacent sub tray 6 _{through 65} is formed on. The recess 8 in between the receiving surface 9 and the sub-tray ₆₁ in the main tray 1 is formed for the left side.

Inside the side walls 13R and 13L of the chassis (main board) 13 provided inside the apparatus main body 2, the main tray 1 that has arrived at the standby position is shown in FIG. 4, FIG. 15, FIG. Sub Tray 6 _1-
Support guides 11a having a protrusion 10 to be engaged with the recesses 8 of 6 ₅ the, 11b are provided. FIG. 1 (b)
In the presence of subtrays subtray 6 _{through 65} are drawn to the loading position as shown in the state in the standby position, or in FIG. 1 (c) as shown in, the sub-tray 6
When replacing the disk 5 is set to either _{through 65} to another disk is performed in the following procedure.

In the case shown in FIG. 1C, the disc is exchanged after the sub-tray at the loading position is returned to the standby position as shown in FIG. As shown in FIG. 1E, the sub tray 6 is replaced by the disc 5 set in the uppermost sub tray 6 ₅ which is directly stacked.
_{With the 1 to} 6 ₅ mounted, pull out the main tray 1 to the outside. As a result, the sub tray 6 for replacing the disc 5
₅ is exposed on the main tray 1, so you can take out an unnecessary disc and set another disc.

The replacement of the disk 5 is set on the sub-tray 6 ₄ which is directly stacked is pending to the standby position subtray 6 ₅ As shown in the FIG. 1 (f), the the sub-tray ₆₁ through ₄ Pull out the main tray 1 with it still on. Thus, the sub-tray 6 ₄ replacing the disk 5 is exposed on the main tray 1, it can be set a different disk removed unnecessary disk.

This sub tray 6_Four Is set to
Sub tray held in the standby position when disc 5 is replaced
6_Five Is supported at the rear end by the support guides 11a and 11b.
And the front end is placed on the main tray 1 that is pulled out to the outside.
Sub tray 6₁ ~ 6_FourSupported at the far end of
It is kept horizontal. Sub tray 6_Three , 6_Two , 6₁ 
The same applies when replacing the disk 5 set in
Therefore, they are shown in (g), (h), and (i) of FIG. 1, respectively.
Sea urchin sub tray 6 _Five And 6_Four , 6_Five And 6_Four And 6_Three , 6
_Five And 6_Four And 6_Three And 6_Two Hold it in the standby position,
Tray 6₁ ~ 6_Three , 6₁ ~ 6_Two , 6₁ With the
Pull out the in-tray 1 to the outside and replace the disc 5
Sub tray 6_Three , 6_Two , 6₁ Dew on the main tray 1
It is ejected, take out the unnecessary disc and another disc
Can be set.

Thus, the main tray 1 and the sub-tray 6 are
The main tray _{through 65} despite was configured to draw the apparatus main body 2 by loading directly, state of the disk to be replaced 5 of the sub-tray 6 _{through 65} is to expose the sub-tray being set 1 can be pulled out and the operability is good. Further, it is possible since the stacked directly the subtray 6 _{through 65} in the main tray 1, for housing the sub-tray of many number of sheets in a limited device main body 2 height.

FIG. 4 which can realize the above disk exchange method
The detailed structure of the optical disk device shown in FIG. [Drive system for main tray] [Drive system for loading position of sub-tray] [Elevating drive system for loading drive system] [Sub-tray holding mechanism for standby position when disc is changed] [Lock mechanism for standby position of main tray] [Lock Mechanism of Sub-Tray Pull-In Drive System] First, the drive system of the main tray 1 will be described.

[Drive System of Main Tray] As shown in FIG. 2, a rack 12 is formed on the back surface of the main tray 1, and when the main tray 1 is set in the apparatus main body 2, this rack 12 is As shown in FIG. 5, the shaft 14 that is planted in the chassis 13 of the apparatus main body 2 meshes with a gear 15 having a rotation center. The gear 15 is capable of meshing with teeth 17D formed in a part of the upper stage of a main gear (drive switching means) 17 having a shaft 16 planted in the chassis 13 as a rotation center, as shown in FIG. The main gear 17 is driven by the motor 19 as follows via the gear 32 that meshes with the teeth 17U formed on the entire circumference of the lower stage.

A friction gear 21 having an input side gear 21a and an output side gear 21b is rotatably attached to a shaft 20 embedded in the chassis 13. A generally known friction mechanism is configured in which a felt is interposed between the input-side gear 21a and the output-side gear 21b, and is pressed against by a spring. The worm 22 fitted on the output shaft of the motor 19 is connected to the friction gear 2 via the gear 23.
It meshes with the first input side gear 21a. Gears 25 and 26 are rotatably attached to a shaft 24 planted in the chassis 13, the lower gear 25 meshes with the input gear 21, and the upper gear 26 forms the output gear 21b. It is in mesh. Therefore, the gear 21 of the friction gear 21
Until the slip occurs between a and 21b, the gear 2
5, 26 rotate together.

When the motor 19 is rotated in the normal direction, the friction gear 21 rotates in the direction of arrow A, and the gears 26, 27, 2
The gear 32 rotates in the direction of arrow B through the gears 8 and 29, the idler gear 30, and the gear 31, and the main gear 17 moves in the direction of arrow C.
, The gear 15 rotates in the direction of arrow D, the rack 12 is driven in the direction of arrow E, and the main tray 1 is pulled into the standby position.

When the main tray 1 is pulled to the standby position, the micro switch 3 attached to the chassis 13
3a is a projection 17a formed on the back surface of the main gear 17.
And the control unit is configured to stop the normal rotation of the motor 19 in the state shown in FIG. It should be noted that when pulled into the standby position of the main tray 1 from outside, the lifting drive system loading drive system is waiting at the top for loading pre subtray 6 _5.

[Driving System of Sub-Tray to Loading Position] When the main tray 1 reaches the standby position, the sub-tray 6
_When loading the disc 5 set to ₅ , when the main tray 1 reaches the standby position as shown in FIG. 7, the teeth 17D of the main gear 17 are
Passes through the section in which the gear 15 meshes as shown in FIG. And instructs the control unit to the loading of the sub-tray 6 ₅ in this state, the main gear 17 is rotated in the arrow C direction gear 32 motor 19 is normally rotated is rotated in the direction of arrow B, shown in FIGS. 8 and 9 So that the tooth 1 of the main gear 17
7D meshes with a gear (drive gear) 38, and drives this gear 38 in the direction of arrow F. The rotation of the gear 38 is caused by the chassis 1
3 is transmitted to the gear 39c through the gears 39a and 39b attached to the back surface of the chassis 3, and the gear 39i is rotated in the arrow G direction via the gears 39d, 39e, 39f, 39g, and 39h attached to the upper surface of the chassis 13. .

The gear 39i meshes with a fan-shaped gear 42 pivotally supported by a pin 41 on a lift 40 of a loading drive system. When the gear 39i is rotated in the direction of arrow G, the fan-shaped gear 42 is rotated.
Rotates in the direction of arrow H. Pin 4 at the end of sector gear 42
3 is engaged with a notch groove 46 formed in a deformation lever 45 whose base end is pivotally supported by a lift 44 with a pin 44. The rotation of the sector gear 42 in the direction of arrow H causes the deformation lever 45 to rotate in the direction of arrow I from the state shown in FIG. 8 to the state shown in FIG. 9 around the pin 44 at the base end.

Notch groove 47 at the tip of the deforming lever 45
Is engaged with a pin 50 of a slidable loading hook 49 by engaging with an elongated hole 48 formed in the elevating table 40. When the deformation lever 45 rotates in the direction of arrow I, the loading hook 49 is elongated. Guided by the bent portion formed at the start end of 48, the tip moves to the state shown in FIG. 9 while rotating in the direction of arrow J.

[0031] Figure 7, loading by the loading hook 49 moves from the state shown in the state shown in FIG 8, the loading hook 49 with the engaging portion 51 of the sub-tray 6 ₅ only subtray 6 ₅ engages Pull out to the position. When the sector gear 42 rotates to the loading end position shown in FIG. 9, it contacts the leaf switch 52 attached to the lifting platform 40 of the loading drive system, and the control unit that detects this stops the forward rotation of the motor 19. .

A gear 39i for driving the sector gear 42 is used.
As shown in FIG. 25, a clamp driving rack 76 meshes with the pin 77 that is planted at the tip of the rack 76.
One end is engaged with a cam hole 80 formed at the other end of a clamp support 79 pivotally supported by pins 78a and 78b on the lift 40 as shown in FIG. Gear 39
When i rotates and the rack 76 slides in the direction of the arrow S along the lifting table 40, the clamp support table 79 moves along the cam holes 80 so that the clamp support table 79 approaches the lifting table 40, as shown in FIG. rotates around the, in this clamp known clamping device mounted on the support base 79 [not shown], to drive rotating clamp the disk 5 is set on the sub-tray 6 ₅ arriving at the loading position Is configured.

When the disc 5 set in any of the sub trays 6 ₄ , 6 ₃ , 6 ₂ , and 6 ₁ is loaded after the main tray 1 arrives at the standby position, the lift table 4 is used.
0 is lowered to the corresponding height of the sub-trays 6 _{4 to} 6 ₁ on which the disc 5 to be loaded is set, and is loaded as shown in FIG. 10 in the same manner as in the case of the sub-tray 6 ₅ .

[Elevating / Driving System of Loading Drive System] A drive system for elevating the elevating table 40 with the main tray 1 at the standby position is constructed as follows. As shown in FIG. 4 or FIG. 8, the idler gear 30 is a T-shaped lever 5 rotatably mounted on a shaft 53 implanted in the chassis 13.
4 and the idler gear 30 is
1 is urged by a spring 55 in the direction of meshing. The gear 29 under the T-shaped lever 54 is
Is rotatably attached to a shaft 53.

The posture of the T-shaped lever 54 is controlled by the shape of the cam 56a formed on the upper surface of the intermittent gear 56. The T-shaped lever 54 is provided with a pin 54a that comes into contact with the cam 56a. The first and second intermittent gears 56 have no teeth so as not to mesh with the gear 57 meshing with the gear 25.
Notches 56a, 56b are formed with a phase difference of 180 ° (see FIG. 11).

When the loading drive system is not in the ascending / descending drive mode, the first cutout portion 56a of the intermittent gear 56 is located at a position meshing with the gear 57, and the intermittent gear 56 is not rotationally driven. On the back of the intermittent gear 56,
As shown in FIG. 11, a trigger cam 56c is formed. The trigger lever 60 pivotally supported by the pin 58 implanted in the chassis 13 and biased by the tension spring 59 in a direction in which the protrusion 60a at the distal end is separated from the trigger cam 56c has a base end portion of an electromagnetic solenoid. 61 is engaged with the movable piece 61a.

When the elevating table 40 of the loading drive system is lowered, the electromagnetic solenoid 61 is temporarily energized so that the trigger lever 60 resists the urging force of the tension spring 59 as shown in FIG. , And the intermittent gear 56 is slightly rotated in the arrow L direction by the protrusion 60a of the trigger lever 60 to mesh the intermittent gear 56 with the gear 57 and rotate the motor 19 in the forward direction.

As a result, the intermittent gear 56 meshed with the gear 57 is driven in the direction of the arrow L, and the trigger cam 56a.
As a result, the T-shaped lever 54 is rotated about the shaft 53 in the direction of arrow M, and as shown in FIG.
0 meshes with a large-diameter gear 63 rotatably supported by a shaft 62 implanted in the chassis 13 to drive the large-diameter gear 63. The large-diameter gear 63 arrives at a position where the second cutout portion 56b of the intermittent gear 56 meshes with the gear 57, the interlock between the intermittent gear 56 and the gear 57 is released, and the intermittent gear 56 stops at its rotational position. I do.

In this state, when the motor 19 is reversely rotated to rotate the friction gear 21 in the direction opposite to the arrow A direction, the gears 26, 27, 28 and 29 and the idler gear 30 are rotated.
, The large-diameter gear 63 rotates in the direction of arrow N. A cam groove 62a is formed on the back surface of the large-diameter gear 63, and a pin 65a whose base end is implanted in a lifting drive lever 65 pivotally supported by a shaft 64 on the chassis 13 is provided with a cam groove 62a.
Is engaged. When the large-diameter gear 63 rotates in the direction of arrow N, the tip of the lifting drive lever 65 rotates in the direction of arrow O about the shaft 64, and is slidably attached to the outside of the right side plate 13R of the chassis 13. Lifting right guide plate 66R
And the lower right guide plate 66R is engaged with the lower right
It is moved along the 3R to the front side of the chassis 13 (in the direction of arrow P).

As shown in FIG. 4, the elevating right guide plate 6
6R and the lifting left guide plate 66L slidably attached to the outside of the left side plate 13L of the chassis 13 have pins 66a and 66b planted at the upper ends thereof, and the center pivots from the chassis 13 side by the pin 13a. Notches 67 formed at one end and the other end of a connecting lever 67 that is freely pivoted.
When the up / down right guide plate 66R moves to the front side of the chassis 13 (in the direction of the arrow P), the up / down left guide plate 66L moves to the far end side of the chassis 13.

The raising / lowering right guide plate 66R is shown in FIG.
As shown in FIG. 14, elevation guide holes 68Ra, 68Rb and slide guide holes 68Rc are formed. As shown in FIG. 14A, the elevation guide holes 68La, 68Lb and slide guides are formed in the elevation left guide plate 66L. A hole 68Lc is formed. Pins 40Ra, 40Rb, 40La, and 40Lb are implanted on both sides of the lifting platform 40 of the loading drive system, and pins 40Ra, 4 on the right side surface of the lifting platform 40.
0Rb penetrates through holes 69Ra and 69Rb formed on the right side surface of the chassis 13 and engages with the vertical guide holes 68Ra and 68Rb of the vertical right guide plate 66R. Pins 40La and 40Lb on the left side of the lifting platform 40 are holes 69La and 69Lb respectively formed on the left side of the chassis 13.
Up and down guide hole 68L of the up and down left guide plate 66L
a, 68Lb.

Pin 4 planted on the right side of the chassis 13
0Rc is engaged with the slide guide hole 68Rc, and the pin 40Lc implanted on the left side surface of the chassis 13 is engaged with the slide guide hole 68Lc. By thus lifting the right guide plate 66R and the slide in conjunction with lifting the left guide plate 66L, the lifting platform 40 is sub tray 6 ₅ loading drive system-accessible FIG. 13 (a of the uppermost [5 th] ) and 14 (a stop position shown in a), the access is loading drive system subtrays 6 ₄ possible 13
(B) and the stop position shown in FIG.
Fig. 13 (c) where the loading drive system can access ₃
And a stop position shown in FIG. 14 (c), sub-tray 6 ₂ loading drive system is accessible to a possible 13 (d) and FIG. 1
4 and the stop position (d), the 13 accessible is loading drive system subtray 6 ₁ (e) and FIG. 14
It is possible to move up and down in parallel with the stop position shown in FIG.

As shown in FIGS. 39 and 40, the pins 40Ra, 40Rb, 4 of the lifting platform 40 are moved when the lifting platform 40 moves to the lowermost stage as shown in FIGS. 13 (e) and 14 (e).
0Lb and 40La are holes 69Ra and 69R of the chassis 13.
b, 69La, and 69Lb, respectively. Here, in the transfer state of the apparatus, FIG. 13 (e) and FIG. 14 (e)
By setting the position to, the chassis 13 receives an impact force even when an impact is applied from the outside.

[0044] The lower end of the lift left guide plates 66L and slit plate 70 is mounted as shown in FIG. 15, the detection holes 70 ₁ to 70 ₅ in the slit plate 70 is bored. Detectably one photo-interrupter 71 is fixed to the detection holes 70 ₁ to 70 ₅ in the chassis 13.
When power is supplied to the control unit, the motor 1
9 is rotated in the normal direction, and the photo interrupter 71 detects the detection hole 70 _5.
Is set to the initial state. When the sub tray to be accessed is input to the control unit, for example, the sub tray 6 ₃
When accessing, the motor 19 is rotated in the reverse direction until the photo interrupter 71 detects the second detection hole 70 ₃ , and the elevating table 40 is moved to the state shown in FIG. 13 (b) and FIG. 14 (b). After that, the state is lowered to the state shown in (c) of FIG. 13 and (c) of FIG. 14 and stopped. The same applies when accessing other sub-tray.

[Sub-Tray Retaining Mechanism to Standby Position When Replacing Optical Disc] A window 72 is formed on the left side surface of the chassis 13 as shown in FIG. On the inside of the left side surface of the chassis 13 facing the window 72, a holding support block 73 made of synthetic resin shown in FIGS. 4 and 15 is attached. The shaft 73a which is planted in the holding support block 73 integrally formed with the support guide 11b has first to fourth parts.
The holding levers 74 ₁ to 74 ₄ are pivotally supported. A contact portion 75a and a leg portion 75b longer than the contact portion 75a are formed at one end of each of the holding levers 74 ₁ to 74 ₄ , and a hook 75c is formed at the other end.
Are integrally formed. The lifting left guide plate 66L includes
First to correspond to the position of the window 72 of the chassis 13 4 cam projection 66 _{1-66 4} the hold lever 74 to _{72d 4}
Are formed at intervals of.

(Replacing the disk of the sub-tray 6 ₅ ) When the elevating table 40 of the loading drive system is in a state where the sub-tray 6 ₅ can be accessed as shown in FIG. 15, the _first to _fourth holding levers 74 ₁ to 74 ₄ Stands up and down the left guide plate 66L against the biasing force generated by the elastic force of each leg 75b.
Of the first to fourth cam projections 66 _{1-66 4} by the contact portion 75a is pushed in the arrow Q direction, the first to fourth holding lever _72d each hook 75c of the ₄ shown in FIG. 16 (a)
Sub trays 6 ₅ that are directly stacked as shown in (d)
It is out of the recess 6a formed in the 6 _second side.

The directly stacked sub trays 6 _{1 to} 6 ₅
Sub-tray 6 _1-
Leaf springs 1a to engage the recess 6b of 6 ₅ is provided in the main tray 1, as shown in FIG. 2 and FIG. 17. A stopper 1b is rotatably mounted on the main tray 1 about a shaft 1c, and is urged by an auxiliary spring 1d formed at an end of the leaf spring 1a so that its tip projects inside the main tray 1. The tip of the stopper 1b is engaged with the concave portions 6c of the sub trays 6 _{1 to} 6 ₅ set in the main tray 1 so that the set sub trays 6 _{1 to} 6 ₅ do not easily fall off. When the main tray 1 is pulled to the standby position, the stopper 1b contacts the inside of the left side plate 13L of the chassis 13 with the lever portion 1e integrally formed with the stopper 1b and resists the bias of the auxiliary spring 1d. tip disengages from the recess 6c of the sub tray 6 _{through 65.}

When the main tray 1 is pulled to the standby position in this way, the sub-trays 6 _{1 to} 6 ₅ have the leaf springs 1a.
And is locked to the main tray 1 with an appropriate locking force. Therefore, when the elevating table 40 of the loading drive system as described above is in the state shown in subtray 6 ₅ accessible 15, first to the hook 75c of the fourth hold lever 74 to _{72d 4} 16 (a)-
Sub trays 6 ₅ that are directly stacked as shown in (d)
Because off the 6 _second recess 6a, and instructs the control unit to the disk exchange sub tray 6 ₅ In this state, the control unit immediately main gear 17 of the motor 19 is rotated forward in a direction opposite to the arrow C rotate pull out the main tray 1 to the outside of the apparatus main body 2 in a state carrying the sub-tray 6 _{through 65} as shown in (e) in FIG. 1, power supply to the motor 19 is formed on the rear surface of the main gear 17 The micro switch 33b detects the protrusion 17c and ends.

(Disc exchange of sub-tray 6 ₄ ) A state in which the elevating table 40 of the loading drive system can access the sub-tray 6 ₅ and the sub-tray 6 _{1 to} 6 ₅ are set in the main tray 1 at the standby position. When the controller is instructed to replace the disk of the sub tray 6 ₄ with,
First, a diagram in which the loading drive system can access the second sub-tray 6 ₄ from the top, which is directly stacked on the main tray 1 and is in the standby position by interlockingly sliding the up / down right guide plate 66R and the up / down left guide plate 66L. 13 (b) and FIG.
The lifting platform 40 is moved to the stop position shown in (b).

In this state, as shown in FIG.
To the first holding lever 74₁ Contact part 75a and the up and down left guy
First cam projection 66 of drive plate 66L₁ Is released from contact with
And is rotated by the urging force generated by the elastic force of the leg portion 75b.
Hook 75c is sub tray 6 _Five Engage with the concave portion 6a.
Second to fourth holding levers 74_Two ~ 74_Four Each leg
The up / down left girder is resisted against the biasing force generated by the elastic force of the portion 75b.
Second to fourth cam projections 66 of the id plate 66L_Two ~ 66_Four To
Therefore, the contact portion 75a is pushed in the direction of the arrow Q, and
As shown in (b) to (d) of FIG._Four , 6_Three ,
6_Two Is removed from the concave portion 6a.

When the movement of the lifting platform 40 is completed, the control unit
The motor 19 is rotated in the normal direction to move the main tray 1 to the main body 2 of the apparatus.
The main gear 1 is pulled out to energize the motor 19.
The protrusion 17c formed on the back surface of the micro switch 3
3b is detected and terminated. In this way the main tray 1
When pulled out, as shown in FIG. 1 (f) and FIG.
Holding lever 74₁ Hook 75c engages with the recess 6a
Sub tray 6 _Five Hold in the standby position
6₁ ~ 6_Four Moves to the outside together with the main tray 1
Butley 6_Four Is exposed, and sub tray 6_Four Set to
You can quickly replace only the existing disc.

(Disc exchange of sub-tray 6 ₃ ) The state where the elevating table 40 of the loading drive system can access the sub-tray 6 ₅ and the sub-tray 6 _{1 to} 6 ₅ are set on the main tray 1 at the standby position. When the controller is instructed to replace the disk of the sub tray 6 ₃ with, the controller will
First, a diagram in which the loading drive system can access the _third sub-tray 6 ₃ from the top that is directly stacked on the main tray 1 and is in the standby position by sliding the lifting right guide plate 66R and the lifting left guide plate 66L in conjunction with each other. 13 (c) and FIG.
The lifting platform 40 is moved to the stop position shown in (c).

In this state, (a) of FIG. 20 and FIG.
As shown in (b), the first and second holding levers 74₁ , 7
4_Two Contact portion 75a of the first and second lifting guide plate 66L
2 cam projection 66₁ , 66_Two Is released from contact with
75c is sub tray 6_Five , 6 _Four Engage with the recess 6a of
You. Third and fourth holding lever 74_Three , 74_Four Is the third
4 cam projection 66_Three , 66_Four Pushes the contact part 75a
Subtray 6_Three, 6_Two From the recess 6a of
I have.

When the movement of the lift table 40 is completed, the control section rotates the motor 19 in the normal direction to pull the main tray 1 out of the main body 2 of the apparatus, and the motor 19 is energized by the main gear 1.
The protrusion 17c formed on the back surface of the micro switch 3
3b is detected and terminated. In this way the main tray 1
When pulled out, as shown in FIG.
_5, 6 ₄ sub tray 6 ₃ pending the standby position, 6 ₂ is moved to the outside along with the main tray 1 sub-tray 6 ₃
There is exposed, it is possible to replace only the rapidly disc set on the sub-tray 6 _3.

(Replacing the disk of the sub-tray 6 ₂ ) A state in which the elevating table 40 of the loading drive system can access the sub-tray 6 ₅ and the sub-tray 6 _{1 to} 6 ₅ are set in the main tray 1 at the standby position. When the controller is instructed to replace the disc in the sub tray 6 ₂ , the controller will
First, a diagram in which the loading drive system can access the fourth sub-tray 6 ₂ from the top that is directly stacked on the main tray 1 and is in the standby position by sliding the vertical lifting right guide plate 66R and the vertical lifting left guide plate 66L together 13 (d) and FIG.
The lifting platform 40 is moved to the stop position shown in (d).

In this state, as shown in FIG.
Second and third holding lever 74₁ , 74_Two , 74_Three Contact
The first, second, and third parts of the portion 75a and the lifting left / right guide plate 66L.
Cam projection 66₁ , 66_Two , 66_Three Is released from contact with
Hook 75c is sub tray 6 _Five , 6_Four , 6_Three Recess 6a
Is engaged. Fourth holding lever 74_Four Is the fourth cam
Protrusion 66_Four The contact portion 75a is pushed in by the
Ray 6_Two Is removed from the concave portion 6a.

When the movement of the lift table 40 is completed, the control section rotates the motor 19 in the normal direction to pull out the main tray 1 to the outside of the apparatus main body 2, and the motor 19 is energized.
The protrusion 17c formed on the back surface of the micro switch 3
3b is detected and terminated. In this way the main tray 1
When you pull out the sub tray 6 as shown in (h) of FIG.
_5, 6 _4, 6 ₃ pending sub-tray 6 ₂ is moved together with the main tray 1 to the outside in the standby position the sub tray 6 ₂
Thus, only the disc set on the sub tray 6 ₂ can be swiftly exchanged.

(Disc exchange of sub-tray 6 ₁ ) The state where the elevating table 40 of the loading drive system can access the sub-tray 6 ₅ and the sub-tray 6 _{1 to} 6 ₅ are set in the main tray 1 at the standby position. When the controller is instructed to replace the disc on the sub-tray 6 ₁ with
First, a diagram in which the loading drive system can access the fourth sub-tray 6 ₂ from the top that is directly stacked on the main tray 1 and is in the standby position by sliding the vertical lifting right guide plate 66R and the vertical lifting left guide plate 66L together 13 (e) and FIG.
The elevating table 40 is moved to the stop position shown in (e).

In this state, FIG. 23 and FIG.
As shown in (d), the first to fourth holding levers 74₁ ~ 7
4_Four All the contact parts 75a of the
1st-4th cam protrusion 66₁ ~ 66_Four Is released from contact with
Hook 75c is sub tray 6 _Five ~ 6_Two To the recess 6a of
I agree. When the movement of the lifting platform 40 is completed, the control unit
The motor 19 is rotated in the normal direction to move the main tray 1 to the main body 2 of the apparatus.
The main gear 1 is pulled out to energize the motor 19.
The protrusion 17c formed on the back surface of the micro switch 3
3b is detected and terminated.

When the main tray 1 is pulled out in this way,
Only sub-tray ₆₁ to hold the sub-tray 6 _{5-6 2} to the standby position as shown in (i) of FIG. 1 is moved outside the sub-tray ₆₁ is exposed together with the main tray 1 is set in the sub-tray ₆₁ You can quickly replace the existing disc. [Lock Mechanism of Main Tray at Standby Position] As shown in FIG. 2, a protrusion 81 is formed on the bottom surface of the main tray 1. On the upper surface of the main gear 17, as shown in FIG. 27, an arcuate projection 82a is formed around the shaft 16. Further, the taper portion 82 is provided at one end of the protrusion 82a.
b and 82c are formed.

FIG. 27 shows the operation of pulling the main tray 1 through the gear 15 by the rotation of the main gear 17, and the main tray 1 is pulled through the states shown in FIGS. 27 to 31 to the state shown in FIG. . The detailed pull-in operation will be described below. When the main gear 17 rotates and the projection 81 of the main tray 1 passes beside the tapered portion 82c of the main gear 17, and the tapered portion 82b enters the projection 81 as shown in FIG.
The main tray 1 is driven by the taper portion 82c of the main gear 17 and pulled in to the standby position (FIG. 31). Also, a sub tray (not shown)
Even if the main gear 17 rotates until the disc is pulled out from the main tray 1 and the disc is clamped, as shown in FIG.
As shown in FIG. 4, the projection 81 of the main tray 1 contacts the projection 82a of the main gear 17 to prohibit the main tray 1 from being manually pulled out.

[Lock Mechanism of Sub-Tray Pull-In Drive System] As shown in FIG.
One concave portion 38a is formed, linear portions 38b and 38c directed to the center of the rotation axis are formed on the inner and outer peripheral portions of the concave portion 38a, and a tapered portion 38d that connects the two linear portions 38b and 38c is formed. The mode lock lever (drawer locking means) 101 is rotatably attached to the chassis 13, a claw portion 101a having the same shape as the recess 38a of the gear 38 is formed at one end, and the other end is described later. A pin 101b that engages with the arcuate grooves 100a and 100b of the main gear 17 and the tapered groove 100c is formed. In addition, the mode lock lever 101 is the torsion spring 1
02, the claw portion 101a is rotationally biased in a direction to engage with the concave portion 38a of the gear 38.

On the back surface of the main gear 17, arcuate grooves 100a and 100b having different radii and a taper groove 100c connecting both arcuate grooves are formed, and the mode lock lever 101 is rotationally driven according to the rotation of the main gear, and the gear 38 is formed.
The rotation is locked / released. Figure 31: Lifting table 4
The figure shows a standby state in which the gear can be moved up and down by 0. At this time, the gear 38 is non-rotatably locked in a predetermined phase by the engagement between the arcuate groove 101a of the main gear 17 and the pin 101b of the mode lock lever 101. .

From the state shown in FIG. 31, the main gear 17
Is driven to rotate, the taper groove 10 of the main gear 17
0c causes the mode lock lever 101 to turn the torsion spring 10
It is rotated against the elastic biasing force of 2 and the claw portion 101a
Is disengaged from the linear portion 38c of the concave portion 38a of the gear 39, and the main gear 17 meshes with the gear 38 so that the gear 38 shown in FIG.
Rotational drive is started as shown in FIG. From this state, as shown in FIG. 8, the loading hook 45 is driven and the sub-tray (not shown) is pulled out. As shown in FIG. 10, until the clamping is completed, the arc groove 101b of the main gear 17 and the mode lock lever 1 are released.
The lock state of the gear 38 is released by the engagement of the 01 pin 101b.

When assembling this apparatus, the gear 30a is rotated in the direction of arrow T in the direction opposite to the direction of arrow I in order to eliminate backlash and backlash in the gear deceleration sequence due to backlash. Let it go In this state, the gear 38 is assembled to the chassis 13 in a phase in which the claw portion 101a of the mode lock lever 101 and the recess 38a of the gear 38 coincide with each other.

As a result, the main gear 17 and the gear 38
Even when the main gear 17 rotates, the claw portion 101a of the mode lock lever 101 rotates the gear 3
8 is pressed against the tapered portion 38d of the concave portion 38a, and the gear 38
Is rotated to a predetermined phase where backlash is absorbed. Further, even when the main gear 17 and the gear 38 are disengaged from each other, the claw portion 101a is inserted into the concave portion 38a. Therefore, even if the gear 38 is overloaded, the linear portion 38b and the claw portion 101a are stretched and stretched. Will not be out of phase without being reversed.

[Emergency Ejection Mechanism] As shown in FIG. 34, an emergency ejection rod (auxiliary drive member) inserted from outside the device.
A plurality of key-like protrusions (engagement portions) 99 a to 99 d are formed on the surface of the low domain gear 17 so as to engage with the tip of the 103. In the state of FIG. 34, when the function of the device is stopped due to some trouble, the door 4 is manually opened and the emergency discharge rod 103 is inserted into the gap between the main tray 1 and the main gear 17 in the device. Emergency discharge rod 103
Hook the tip of the key to the key-like protrusion 99a. From this state,
When the emergency ejection rod 103 is pushed in the direction of the arrow W and the main gear 17 is rotated to the position indicated by the chain double-dashed line, the disc clamp state is released. During rotation of the main gear 17, the key-like protrusions 99a to 99d are formed in a U-shape, so that the emergency ejection rod 103 operates in the key-like protrusion 9
It does not come off from 9a to 99d.

When the emergency ejection rod 103 is pushed in the direction of the arrow W, the key-like projection 99b prevents further pushing as shown in FIG. From here,
The emergency ejection rod 103 is once pulled out in the direction opposite to the arrow W, engaged with the key-like projection 99b, and pushed in the direction of the arrow W again. When the main tray 1 is ejected from the apparatus main body to the state shown in FIG. 38 by repeating the above-described operation four times and passing through the steps of FIGS. 36 and 37, the operator grasps the main tray 1 and completely takes it out. Is possible.

At this time, the sub-tray stacked on the upper side of the sub-tray pulled out to the loading position is left in the apparatus. Therefore, with respect to the remaining sub-tray, not shown, by forming a sub-tray 6 _{through 65} a thin resin member, Hazuseru the engagement between the hold lever 74 to _{72d 4} which is elastically deformed Because of the configuration, by pulling out the elastically deformed sub-tray,
Five subtrays 6 _{through 65} all left in the device can be removed.

As described above, the main tray retracting drive system for retracting the main tray 1 to the standby position is used for the rack 1
2, a sub-tray pull-out drive system configured to pull out the sub-tray from the standby position to the loading position and interlock the optical disc set in the sub-tray with the clamp device in synchronization with the completion of pulling out the sub-tray to the loading position. , Gears 38, 39a-39
i, fan gear 42, loading hook 49, clamp driving rack 76, clamp support base 79, etc.,
Main gear 17 in which drive switching means is formed by an intermittent gear
And the pull-in locking means is a mode lock lever 10.
1, the claw portion 101a of the mode lock lever 101
Since the gear 38 is rotationally driven to reduce the backlash, the sub-tray pull-out operation and the main tray pull-in operation can be realized without causing the phase shift even with only the single motor 19.

Further, since the key-like projections 99a to 99d of the main gear 17 are sequentially pushed by the emergency discharge rod 103 from the outside of the apparatus, the sub-tray at the loading position can be taken out of the apparatus main body together with the main tray. Further, when the apparatus is in the transfer state, the lifting platform 40 is moved to the lowest stage, and the pins 40Ra, 40R of the lifting platform 40 are moved.
b, 40Lb, 40La are holes 69Ra of the chassis 13,
Since it is configured to be supported by 69Rb, 69La, and 69Lb, respectively, it is possible to have a configuration that is resistant to impact from the outside.

[0072]

EFFECTS OF THE INVENTION Claims 1, 2 and 3
According to the described invention, the sub-tray pull-out drive system is locked by locking the drive gear by the pull-out locking means during the pull-in operation of the main tray. Does not occur. During the operation of returning the sub tray from the loading position to the main tray, even if the drive transmission between the drive switching means and the drive gear is disconnected immediately before the end of this operation, the pullout locking means is driven by the drive switching means. Then, the claw portion of the drawer locking means drives the taper portion of the drive gear to rotate the drive gear, so that the drive gear can be locked while the backlash of the sub-tray drawer drive system is reduced, resulting in overloading. Even if a load is added, the sub-tray can be surely returned to the main tray without any phase shift.

In the optical disk device according to the fourth aspect, when it is necessary to urgently discharge the power when a power failure occurs in the loading completed state, the auxiliary drive member is inserted from the front surface of the device body to engage the drive switching means. By sequentially driving the parts, the sub-tray pull-out drive system reverses to return the sub-tray at the loading position and the optical disc to the standby position, and the main tray pull-in drive system reverses to move the main tray at the standby position to the outside of the main body of the device. The optical disc can be moved and taken out of the apparatus.

In the optical disk device according to the fifth and sixth aspects, when the lifting table is moved to the height corresponding to the lowermost sub-tray, the lifting table is supported by the main substrate, not by the lifting driving means, and therefore the transfer is performed. Even when a shock is applied inside, the lifting table is not detached and the information reading means is not damaged due to damage to the lifting drive means.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a disk exchange method of the present invention.

FIG. 2 is a perspective view of a main tray and a sub-tray used for setting an optical disk device main body and an optical disk of the present invention.

FIG. 3 is a perspective view of the back surface of the sub-tray of the same embodiment.

FIG. 4 is a plan view of the inside of the optical disk device body of the same embodiment.

FIG. 5 is an enlarged plan view of the drive mechanism of the main tray of the same embodiment.

FIG. 6 is an enlarged plan view of the drive mechanism of the main tray according to the same embodiment in a retracted state.

FIG. 7 is a plan view showing a state where the main tray is pulled into the standby position of the optical disk device main body of the same embodiment.

FIG. 8 is a plan view of a drive system of the loading device of the embodiment.

FIG. 9 is a plan view of the loading system of the loading device according to the first embodiment when the loading is completed.

FIG. 10 is a plan view showing a state where one of the sub-trays in the standby position of the embodiment is moved to the loading position.

FIG. 11 is an enlarged plan view of an essential part for switching the power transmission system of the motor of the embodiment from the drive system of the main tray to the drive system for raising and lowering the loading device.

FIG. 12 is an enlarged plan view of a drive system that raises and lowers the loading device according to the embodiment.

FIG. 13 is a right side view of the apparatus main body according to the same embodiment.

FIG. 14 is a left side view of the apparatus body of the same embodiment.

FIG. 15 is an exploded perspective view of the holding mechanism when the main tray of the embodiment is at the standby position and the loading device is positioned at a height at which the uppermost (fifth) sub-tray can be loaded.

FIG. 16 is an exploded view of a holding mechanism when the loading device of the embodiment is located at a height at which a fifth sub-tray can be loaded.

FIG. 17 is an exploded perspective view showing a locked state of the sub tray to the main tray according to the same embodiment.

FIG. 18 is an exploded view of a holding mechanism when the loading device of the embodiment is located at a height at which a fourth sub tray can be loaded.

FIG. 19: The main tray is moved to the outside of the apparatus main body while commanding the exchange of the disks set in the fourth sub-tray of the same embodiment, while the fifth disk is held in the standby position. Perspective view of the case

FIG. 20 is an exploded perspective view of a holding mechanism when the loading device of the embodiment is located at a height at which a third sub-tray can be loaded.

FIG. 21 The same exploded view

FIG. 22 is an exploded view of the holding mechanism when the loading device of the embodiment is located at a height at which the second sub tray can be loaded.

FIG. 23 is an exploded perspective view of a holding mechanism when the loading device of the embodiment is located at a height at which the first sub-tray can be loaded.

FIG. 24 The same exploded view

FIG. 25 is a side view of the drive system of the disc clamping device of the embodiment before clamping.

FIG. 26 is a side view of the drive system of the disk clamp device according to the embodiment during clamping.

FIG. 27 is a process diagram illustrating the stopper mechanism of the main tray and the lock mechanism of the pull-out drive system of the sub tray according to the same embodiment;

FIG. 28 Same as above

FIG. 29 Same as above

FIG. 30 Same as above

FIG. 31 Same as above

FIG. 32 Same as above

FIG. 33 is a detailed view of the lock mechanism of the sub-tray pull-out drive system of the embodiment.

FIG. 34 is a process diagram illustrating emergency ejection of the main tray according to the same embodiment.

FIG. 35 Same as above

FIG. 36 Same as above

FIG. 37 Same as above

FIG. 38 Same as above

FIG. 39 is a detailed view of a holding mechanism when the loading device of the embodiment is located at a height at which the first sub-tray can be loaded.

FIG. 40 Same as above

[Explanation of symbols]

1 Main Tray 2 Device Main Body 3 Front Opening 4 Door 5 Disc 6 _{1 to} 6 ₅ Sub Tray 13 Chassis (Main Board) 17 Main Gear (Drive Switching Means) 19 Motor 38 Gear (Drive Gear) 38a Recess of Gear 38 40 Loading Drive Elevating table of system 81 Protrusion of main tray 1 99a to 99d Key-like protrusion (engagement part) of main gear 17 101 Mode lock lever (drawing and locking means) 101a Claw 103 Emergency ejection rod (auxiliary drive member)

Claims (6)

[Claims] 1. A main tray in which a plurality of sub-trays are stacked is pulled from the outside of the apparatus main body to a standby position inside, and a sub-tray mounted on the main tray at the standby position is pulled out to a loading position. An optical disk device that is interlocked with the completion of pulling out a sub-tray to a sub-tray, and is rotationally driven while being clamped by a clamp device to be used for recording or reproduction. A main tray pull-in drive system that pulls the tray from the outside of the apparatus main body to an internal standby position, and a sub-tray pull-out means that pulls out the sub-tray from the storage position stored in the main tray at the standby position to the loading position where the sub-tray has been completely pulled out. And the rotation of a single motor of the power source A drive switching means for switching and transmitting to the main tray pull-in drive system and the sub-tray pulling means, and a gear including a drive gear for transmitting drive from the drive switching means to the sub-tray pulling means and meshing / disengaging with the drive switching means. In a state in which the sub-tray pull-out drive system composed of a transmission system, the drive switching means and the drive gear are disengaged,
An optical disk device provided with a pull-out locking means driven to lock the drive gear by the drive switching means. 2. A state in which at least one concave portion is provided on an outer peripheral portion of the drive gear, and a claw portion which engages with the concave portion of the drive gear is provided in the drawer locking means, and the drive switching means and the drive gear are separated from each other. 2. The optical disk device according to claim 1, wherein the pullout locking means is driven by, and the drive gear is rotationally driven so as to reduce the backlash of the subtray pullout drive system by the engagement of the claw portion and the concave portion. 3. A first linear portion directed toward a rotation center of the drive gear is formed on an inner peripheral portion of the recess of the drive gear, and a first straight portion directed toward a rotation center of the drive gear is disposed on an outer peripheral portion of the recess of the drive gear. A second linear portion is formed, a taper portion connecting the first linear portion and the second linear portion is formed, and the first linear portion is in a state in which the drawer locking means and the drive gear are engaged. The optical disk device according to claim 2, wherein a claw portion having substantially the same shape as the portion is formed. 4. A main tray in which a plurality of sub-trays are stacked is pulled from the outside of the apparatus main body to a standby position inside, and the sub-tray mounted on the main tray at the standby position is pulled out to a loading position, and the loading position is set. An optical disk device that is interlocked with the completion of pulling out a sub-tray to a sub-tray, and is rotationally driven while being clamped by a clamp device to be used for recording or reproduction. A main tray pull-in drive system that pulls the tray from the outside of the main body to the internal standby position, and a sub-tray pull-out drive that pulls out the sub-tray from the storage position stored in the main tray at the standby position to the loading position where the sub-tray has been completely pulled out. System and rotation of a single motor of power source Is transmitted to the main tray pull-in drive system and the sub-tray pull-out means by switching, and the drive switching means having a plurality of engaging portions is formed, and the plurality of engaging portions of the drive switching means are sequentially driven from outside the device. An optical disk device provided with an auxiliary drive member for driving the drive switching means. 5. A main tray in which a plurality of sub-trays are stacked is pulled from the outside of the apparatus main body to a standby position inside, and the sub-tray mounted on the main tray at the standby position is pulled out to a loading position, and the loading position is set. An optical disk device that rotates and drives the optical disk set in the sub-tray with a clamp device for recording or reproduction in synchronization with the completion of pulling out the sub-tray to the sub-tray. A table, an elevating and lowering driving means for moving the elevating and lowering table to a height corresponding to a sub-tray selected from the plurality of sub-trays, and a lowermost step among the stacked sub-trays for movably holding the elevating and lowering driving means. A main board that holds the height of the lift table at a position corresponding to the height of the sub tray of Disk device. 6. The optical disk device according to claim 5, wherein the elevating table is held by the main substrate at a height corresponding to the height of the lowermost sub-tray among the stacked sub-trays while the optical disk device is being transported.